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Knauf Earthwool Acoustic Partition Roll

Overview: Acoustic Partition Roll (APR)

Knauf Glass and Stone Mineral Wool Rolls and Slabs

The acoustic insulation properties of glass mineral wool results in specialist sound reducing products that are available for use in new build separating walls, partitions, and floors, as well as for the upgrade of existing buildings to provide improved sound insulation and resistance.

Knauf Insulation acoustic insulation rolls have been especially developed to utilise the sound absorption properties of glass mineral wool.

While the thermal insulation properties of glass mineral wool are maintained, for these products, this is usually considered a secondary benefit, as their primary purpose is to improve the acoustic insulation performance of the solutions in which they are used.

Key reasons for the use of these products are: reducing airbourne sound transmission (e.g. through partition walls) reducing impact sound transmissions (e.g. through upper floors) reducing sound reverberation in specialist environment (e.g. recording studios)

Product Price List and / or Add to Cart

Availability: Popular product readily available throughout the country.

Price List: Knauf Earthwool Knauf Acoustic Roll - Glass Mineral Wool - Unfaced roll - Thermal conductivity = 0.032W/mK

1. Click items below for pricing structure. 2. Click Tick-Box to select one or more items. 3. Click Add to Cart Button.

Common product, generally held by all depots Knauf Earthwool® Acoustic Roll (4 x 600mm) 25mm, 2.4x10m = 24m² - start at £42.84
Common product, generally held by all depots Knauf Earthwool® Acoustic Roll (2 x 600mm) 50mm, 1.2x13m = 15.6m² - start at £43.37
Common product, generally held by all depots Knauf Earthwool® Acoustic Roll (2 x 600mm) 75mm, 1.2x12.5m = 15m² - start at £56.39
Common product, generally held by all depots Knauf Earthwool® Acoustic Roll (2 x 600mm) 100mm, 1.2x9.17m = 11m² - start at £53.34
Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Acoustic Roll (3 x 400mm) 100mm, 24 x 1.2x9.17m = 264.1m² - start at £1,288.83

Knauf Acoustic Roll - Price and Availability Advisory

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Knauf Earthwool Acoustic Roll

Earthwool Acoustics Roll are ideal for insulating internal floors, separating floors, internal walls and plasterboard partitions.

Acoustic Performance: Earthwool Acoustic Roll has exceptional acoustic absorption properties.

Fire Performance:  Knauf Acoustic Roll is classified as Euroclass A1 to BS EN 13501-1.


Earthwool Acoustic Roll is a flexible glass mineral wool quilt which is lightweight, flexible, resilient and non-combustible.

Earthwool Acoustic Rolls are 1200mm wide and ready-cut to produce three, 400mm wide rolls, or two, 600mm wide rolls and manufactured to a minimum density of 10Kg/m3.


Excellent sound absorption properties

Lightweight, and easy to install

Dimensioned to suit studs and joists at 400mm or 600mm centres

Long roll lengths for quick and economic Installation

Friction fits between studs, ensuring continuity of the absorbent layer with no air gaps


Earthwool Acoustic Roll is specifically designed for friction fitting between joists and studs at 400mm and 600mm centres to improve the sound insulation of:

  • Separating walls and floors
  • internal walls and floors
  • timber and metal stud partitions

It is also designed for friction fitting between resilient timber battens and timber studs in Robust Detail separating floors and walls.

And, provides a high level of sound absorption, whilst also improving the thermal and fire performance of the wall, floor or partition. Using glass mineral wool as a sound absorbent layer in partitions and floors significantly improves their acoustic performance, whilst only adding minimally to the overall mass of the structure.

In partitions glass mineral wool complements the plasterboard linings by absorbing airborne sound in the cavity and reducing reverberation, it is particularly effective at preventing the hollow sound that can occur in partitions with unfilled cavities.


Knauf Acoustic Roll represents no known threat to the environment and has zero Ozone Depletion Potential and zero Global Warming Potential.


Earthwool Acoustic Roll is manufactured in accordance with BS EN 13162, EN 16001 Energy Management Systems, OHSAS 18001 Occupational Health and Safety Management Systems, ISO 14001 Environmental Management Systems, and ISO 9001 Quality Management Systems, as certified by Bureau Veritas.


Knauf Acoustic Roll is odourless, rot proof, non-hygroscopic, does not sustain vermin and will not encourage the growth of fungi, mould or bacteria.

Vapour resistivity

Knauf Acoustic Roll offers negligible resistance to the passage of water vapour and has a vapour resistivity of 5.00MNs/g.m.

Handling and storage

Knauf Acoustic Roll is easy to handle and install, being lightweight and easily cut to size, where necessary.

It is supplied in polythene packs which are designed for short term protection only.

For longer term protection on site, the product should be stored either indoors, or under cover and off the ground.

Knauf Acoustic Roll should not be left permanently exposed to the elements.

Technical Properties

Knauf Acoustic Roll
Thickness (mm) Length (m) Width (mm) Area per Roll (m2)
100 9.17 2 x 600 11
100 9.17 3 x 400 11
75 12.5 2 x 600 15
50 13 2 x 600 15.6
25 10 4 x 600 24

Product Information and Certification

Links to manufacturer's information. Click to download in a separate browser window.

Earthwool Knauf Acoustic Roll Datasheet | Knauf Acoustic Floor Roll Datasheet

Priced on Application:

Generally, Products are readily available

Estimates for large quantity orders can be priced on application. Please contact us to discuss such matters.

Contact us directly for further information: Telephone 0333 8000 828  - Email: Click Here:

Contact Manufacturer

Knauf Insulation Limited

Knauf Glass and Stone Mineral Wool Rolls and Slabs

PO Box 10, Stafford Road, St Helens,
Merseyside, WA10 3NS

Knauf Technical Advisory Service

Telephone: +44 (0) 1744 766666 - Fax: +44 (0) 1744 766667
Web sites: Knauf Home Page / Knauf Insulation Solutions iPad App.

Contact us

Insulation Online Limited

Sales Office only:39 Normandy Road, Worthing, West Sussex, BN14 7DX, UK

Telephone: 0333 8000 828


Web site: - we always deliver top quality products, competitive pricing and an efficient caring service